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Finding the Fourth Proportional to 350,078.60, 525,117.90 and 172,931.60

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Solution

The fourth proportional to 350,078.60, 525,117.90 and 172,931.60 is: 259,397.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,078.60 : 525,117.90 = 172,931.60 : x
  2. Step 2: Convert to fraction form
    350,078.60/525,117.90 = 172,931.60/x
  3. Step 3: Cross multiply
    350,078.60x = 525,117.90 × 172,931.60
  4. Step 4: Simplify right side
    350,078.60x = 90,809,478,635.64
  5. Step 5: Solve for x
    x = 90,809,478,635.64/350,078.60
  6. Step 6: Final answer
    x = 259,397.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.